U320 SCSI DISKS IN A U160 ENCLOSURE
Posted 11 November 2004 - 07:46 PM
I’ve seen external SCSI enclosures for a good price, in black, most of the U320 are ugly, but they are rated and advertised as Ultra 160. I have 4 SCA-2 disks rated at U 320, and so is my HBA, to be used for external connection: LSI 22320 SCSI card.
If I install the U320 SCA-2 disks into the U160 enclosure, will the drives interface only at U160 with the U320 HBA card?, or will they interface at U320?
I am unable to find information, and would like to know of any experience before purchasing the unit.
I don’t understand, if the U320 & U160 enclosures use the same internal 80 pin connector & external 68 pin connectors, why the difference. I think the speed is controlled by the drives and the HBA SCSI card, right?
Or is their something inherent to U320 cables & storage enclosures not found on the U160 counterpart.
Any input would be appreciated.
Posted 11 November 2004 - 08:04 PM
Posted 11 November 2004 - 08:20 PM
My suspicion is that they are compatible, this is the reasoning behind my argument, maybe is referential reasoning:
I while back I purchased a Trimm Technologies Fibre Drive Enclosure; the enclosure was designed to work at with U160 FC drives rated at 200MB/sec, and with 1/GB HBA FC interface cards.
I installed 4 ST373453FC U320 drives into the enclosure; 40-pin interface backplane, then attached the fibre-optics cables, FC-AL loop, back to the Emulex 2/GB HBA FC card, and my sustained speeds are consistent with 2/GB FC interface.
So the enclosure, manufactured before the 2/GB HBA technology was implemented did not prevent the drives from operating at optimal 2/GB interface.
Posted 11 November 2004 - 09:12 PM
Posted 11 November 2004 - 10:34 PM
I am only installing 4 SCA-2 drives: 2 – 146GB and 2 73GB. They currently reside inside the PC, using a 80-68 pin converter, but I’ve been reading that the use of the converter can put a strain on the SCSI channel attached with regular 68 Pin drives and SCA-2 converter to 68 pin interface.
Posted 11 November 2004 - 10:42 PM
Posted 12 November 2004 - 12:10 AM
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